Memorandum device.



S. KAHN.

MEMORANDUM DEVICE. APPLICATION mum JUL'Y 29, 1907. mmnwnn mm. s, 1909.

Patented Mar. 30, 1909.

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MEMORANDUM DEVICE.

Specification of Letters Patent.

Patented March 80, 1909.

Application filed. July 29, 1907, Serial No. 385,967. Renewed February6, 1909. Serial No. 476,482.

To all whom it may concern:

Be it known that I, SAMUEL KAI-1x, a citizen of the United States,residing at Baltimore city, Stateof Maryland, have invented certain newand useful Improvements in Memorandum Devices, of which the following isa specification.

My invention relates to an improvement in memorandum devices, and isparticularly adapted to record telephone calls and the like, while notrestricted in its use to this particular object, nevertheless it is forthis purpose that the device is most applicable.

With the foregoing object in view, my invention consists in certainnovel features of construction and combinations of parts which will behereinafter described and pointed out in the claim.

In the accompanying drawings, Figure 1, is a perspective view showingthe application of the invention; Fig. 2 is a face View of theinvention, and Fig. 3, is a detail view of one of the recording strips.

A, represents the holder, made from any suitable material.

1, represents a series of pockets, which are constructed in the deviceby means of the partitions formed by sewing the front and back sides ofthe holder A together at 2; 3, designates the slides adapted to beslidably secured in the pockets 1, and are extended beyond and withoutthe pockets a suitable distance at the top, that the indexes i are atall times visible.

The device may be enlarged to contain any number of slides that may bedesired, and the several slides may be indexed according to the purposefor which they may be desired to be used. For instance, the first fourslides indicated 3, to the left, are indexed No. designating that theslides are provided with numerals 1 to 0 printed thereon, a detail viewof one of the slides being shown on Fig. 3. These numerals are spaced atsuitable distances apart as designated by 5; the first two slides to theright 6 and 7 are indexed Letter and Exchange respectively, as indicatedby 8 and 9, and on the slide 6 is printed a series of letters of thealphabet as indicated by 10 shown in Fig. 1, while the first slide 7 tothe right, indexed Exchange has printed thereon the name of the severalchanges as indicated by 11 in Fig. 1.

The alphabetical letters on the slide previously described and the namesof the several exchanges just described are spaced on the respectiveslides at equal distances apart similar to the slide provided with thenumerals thereon, so when the device is closed it will appear as shownin Fig. 2, and when in use the withdrawal of the first four slides 3 tothe left equal distances, will cause similar numerals to become visible.It necessarily follows that upon the withdrawal of the two slides 6 and7 on the right, at certain equal spaced distances a new letter and nameof the exchange desired will become visible.

13, represents an ordinary telephone directory on the back of which thedevice is adapted to be secured in any suitable manner (not shown) andso secured that the device will project above the top edge of the saiddirectory as shown in Fig. 1.

My device is operated as follows: If for any reason one desires to makea memorandum of a telephone call either for the purpose of calling aparticular number or to record the number of an incoming call, theslides 3 are withdrawn from the holder suificiently to cause therespective numbers of the call to appear in a parallel line above theedge of the book; next is withdrawn the slide 6 indicating the letterdesignating the call (if the call happens to contain a letter) in manyinstances telephone exchanges are conducted on what are known as partylines, several parties using the same line, their respective numbersbeing the same but distinguished by an alphabetical letter, lastly theslide 7 is withdrawn until the name of the exchange desired becomesvisible and parallel with the numerals and the alphabetical letter ofthe respective slides 3 and 6, for example the call as shown by thememorandum in Fig. 1, indicates that the number desired to be called is3122 C Madison.

It will be seen that I have rovided a device cheap of manufacture as thedevice may be manufactured from any suitable material such as paper,card board, celluloid and the like) simple in operation, and effectivefor the purpose of which it is intended.

Slight changes within the scope of the appended claims might be resortedto in the form and arrangement of the several parts described, withoutdeparting from the spirit and scope of my invention, and hence I do notwish to limit myself to the exact construction as herein set forth; but

Having fully described my invention, What I claim as new and desire tosecure by Letters Patent, is:

The combination in atelephone call menioranduni device of the characterdescribed, comprising a flat oblong holder open at the upper endthereof,-a plurality of pockets provided Within the said holder, aplurality of slides, slidably secured Within the said pockets andadapted to extend above and Without the said pockets, lndexes provided Il i on the said extended portions, a, plurality of letter spacesprovided on the said slides, having characters printed therein, andloceted below the said indexes, substantially 15 as described.

In testimony whereof I affix my signature in presence of two Witnesses.

SAMUEL KAHN. itnesses E. VALTON BREWINGTON, IIOVARD E rnnn'r.

